PERKINS CAPITAL MANAGEMENT INC MRK — D MERCK & CO INC COM

Ownership history in PERKINS CAPITAL MANAGEMENT INC  ·  73 quarters on record

AI Ownership Summary

PERKINS CAPITAL MANAGEMENT INC reported D MERCK & CO INC COM (MRK) in 73 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 1.39% in 2024 Q2. The latest visible filing shows MRK at 0.87% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this MRK ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was PERKINS CAPITAL MANAGEMENT INC's position in D MERCK & CO INC COM, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

MRK was reported at 0.87% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.39% in 2024 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

MRK stock page PERKINS CAPITAL MANAGEMENT INC fund profile PERKINS CAPITAL MANAGEMENT INC full holdings
How PERKINS CAPITAL MANAGEMENT INC held MRK — position size vs. price
% of Fund (quarterly)    MRK price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 7,750 -1,000 -11.4% 0.87% $932K 2026-04-23 $114.62
2025 Q4 UNCHANGED — — — 8,750 — 0% 0.73% $921K 2026-02-04 $117.46
2025 Q3 UNCHANGED — — — 8,750 — 0% 0.65% $734K 2025-10-31 $84.62
2025 Q2 REDUCED 16.7% +0.2% ❌ 8,750 -1,750 -16.7% 0.70% $693K 2025-08-07 $78.33
2025 Q1 UNCHANGED — — — 10,500 — 0% 0.99% $942K 2025-05-07 $76.35
2024 Q4 REDUCED — — — 10,500 -250 -2.3% 0.93% $1.0M 2025-02-11 $82.79
2024 Q3 REDUCED 9.9% -12.7% ✅ 10,750 -1,175 -9.9% 1.14% $1.2M 2024-10-31 $97.11
2024 Q2 REDUCED — — — 11,925 -300 -2.5% 1.39% $1.5M 2024-08-09 $108.00
2024 Q1 UNCHANGED — — — 12,225 — 0% 1.35% $1.6M 2024-05-09 $122.05
2023 Q4 ADDED — — — 12,225 +400 +3.4% 1.14% $1.3M 2024-01-22 $111.22
63 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding MRK

As of 2026 Q1 — sorted by position size

Wallace Advisory Group, LLC 3Y 14.83% Radnor Capital Management, LLC 3Y 7Y 9.25% Clark & Stuart, Inc 8.41% Slocum, Gordon & Co LLP 7.73% Atle Fund Management AB 3Y 7Y 7.4% SECTOR GAMMA AS 3Y 7Y 7.39% Bruce & Co., Inc. 3Y 7Y 6.63% Smead Capital Management, Inc. 3Y 7Y 6.47% Round Hill Asset Management 3Y 7Y 5.67% Adalta Capital Management LLC 3Y 7Y 5.13%

FAQ About PERKINS CAPITAL MANAGEMENT INC and MRK

These are the practical questions this page is built to answer before you even open the full history table.

How long has PERKINS CAPITAL MANAGEMENT INC reported owning MRK?

PERKINS CAPITAL MANAGEMENT INC reported MRK across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported MRK position in PERKINS CAPITAL MANAGEMENT INC's portfolio?

The largest reported portfolio weight for MRK was 1.39% in 2024 Q2.

What is the latest reported MRK position on this page?

The most recent filing on this page is 2026 Q1, when PERKINS CAPITAL MANAGEMENT INC reported 7,750 shares, equal to 0.87% of portfolio, with an estimated market value of $932K.

What does the chart on this MRK ownership page compare?

The chart compares PERKINS CAPITAL MANAGEMENT INC's quarterly MRK portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did PERKINS CAPITAL MANAGEMENT INC time their MRK position?

Based on 13F filing dates vs. subsequent MRK price moves, PERKINS CAPITAL MANAGEMENT INC correctly timed 17 out of 48 reported position changes (35%). The annualised alpha on MRK relative to SPY over the holding period was -2.7%.

← Back to PERKINS CAPITAL MANAGEMENT INC Holdings